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← Nature & AnimalsWhich effect occurs when a hibernating mammal spontaneously increases blood flow through surface capillaries?
A)Substrate-level phosphorylation activation
B)Brown fat thermogenesis suppression
C)Reduced cellular metabolic Q10
D)Reversal of systemic hypothermia✓
💡 Explanation
When a hibernating mammal undergoes vasodilation, it increases peripheral blood flow because heat dissipation rises, serving to raise the animal's core temperature after a period of reduced metabolic activity during torpor. Therefore, reversal of hypothermia results, rather than suppression, activation, or Q10 decrease which would not directly counteract the hypothermic state.
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